Leica DM750 M Manuel utilisateur
Leica DM750 M
Manual
Leica DM750 M Manual 2
Table of Contents
Safety instructions 3
Safety Notes 4
Instructions on use 5
Instructions on use (continued) 6
Assembling the Leica DM750 M 7
Assembling the Incident Light Axis 8
Assembling the Viewing Tubes 9
Leica EZ Viewing Tube with Integrated Eyepieces 10
Leica EZ Viewing Tube – integrated eyepieces (cont.) 11
Leica Standard Tube with Separate Eyepieces 12
Eyecups 13
Installing Objectives 14
Conversion to Incident Light Polarization 15
Use 16
Switching on the Microscope 17
Modifying the Aperture Diaphragm 18
Illumination Scenarios 19
Illumination Scenarios (continued) 20
Using Specimen Holders 21
Automatic Shutoff of Illumination 22
Conversion and Use with Transmitted Light 23
Optional Koehler Illumination 24
Installing the Condenser 25
Installing the condenser (continued) 26
Switching on the Microscope 27
Complete Condenser Centering 28
Complete Condenser Centering (cont.) 29
Using the Condenser 30
Preparation for Viewing a Specimen Slide 31
Focusing 32
Viewing Tube Adjustment 33
Viewing Tube Adjustment (cont.) 34
Viewing Tube Adjustment (cont.) 35
Koehler Configuration 36
Koehler Configuration (cont.) 37
Automatic Shutoff of Illumination 38
Care and Repair Instructions 39
Care Instructions 40
Accessories, Maintenance and Repair 41
Specications and Dimensions 42
Electrical Data and Ambient Conditions 43
Dimensions (in mm) 44
Leica DM750 M Manual 3
Safety instructions
Leica DM750 M Manual 4
Before installing, operating or using the
instrument, it is mandatory to read this
user manual. In particular, please observe all
safety instructions.
The "Safety Concept" brochure contains additi-
onal safety information regarding service work,
requirements and the handling of the micro-
scope, the electrical and other accessories as
well as general safety instructions.
You can combine individual system articles with
articles from external suppliers. Please read the
user manual and the safety instructions of the
supplier.
To maintain the unit in its original condition
and to ensure safe operation, the user must
follow the instructions and warnings contained
in these user manuals.
Warning of a danger
This symbol indicates especially impor-
tant information that is mandatory to
read and observe. Failure to follow these inst-
ructions may pose hazards to personnel, cause
instrument malfunctions or damage the instru-
ment.
Hazardous electrical voltage
This symbol indicates especially impor-
tant information that is mandatory to
read and observe. Failure to follow these inst-
ructions may pose hazards to personnel, cause
instrument malfunctions or damage the instru-
ment.
Important information
This symbol indicates additional infor-
mation or explanations that intend to
provide clarity.
EC Declaration of Conformity
Electrically operated accessories are construc-
ted based on the state of the art of technology
and are provided with an EC Declaration of
Conformity.
Safety Notes
Contact address
Leica Microsystems (Schweiz) AG
Industry Division
Max Schmidheiny Strasse 201
CH-9435 Heerbrugg (Switzerland)
Leica DM750 M Manual 5
Intended use
The DM series microscopes by Leica are opti-
cal instruments for improving the visibility of
objects through magnification and illumina-
tion. They are used for observing and docu-
menting.
Place of use
Use the instrument in enclosed,
dust-free rooms at +10 °C to
+40 °C only. Protect it from oil, chemicals and
extreme humidity. It must be at least 10 cm
from the wall and away from flammable subs-
tances.
Interference
Avoid large temperature fluctuations, direct
sunlight and vibrations. These conditions
can distort measurements and micrographic
images.
In warm and warm-damp climatic zones,
the individual components require
special care in order to prevent the build-up of
fungus.
Use in clean rooms
Leica DM series microscopes can be used in
clean rooms without any problems.
Handling electrical components
Never install any other plug (NEMA
5-15P) or unscrew any mechanical
components unless expressly instructed to do
so in the instructions.
The microscope must be connected to a
grounded socket.
Always position the microscope so that
you can disconnect it from the power
supply at any time. The power cable is provided
as the power disconnect device.
Instructions on use
Leica DM750 M Manual 6
Intervention from the user
The microscopes of the DM series contain
no components that can be maintained
or repaired by the user. Exceptions are menti-
oned specifically in this manual.
Unless otherwise specified in this
manual, repair and service work may
be carried out by authorized Leica technicians
only.
Unauthorized alterations to the instru-
ment or noncompliant use shall void all
rights to any warranty claims.
Maintenance
Leica DM series microscopes are basi-
cally maintenance-free. To ensure that it
always operates safely and reliably, we recom-
mend that you take the precaution of contac-
ting the responsible service organization. Here
you can arrange for periodic inspections and
conclude a maintenance contract (recommen-
ded).
Accessories
Only those accessories may be used that are
listed in this user manual or for which safe use
has been confirmed by Leica Microsystems.
Danger of infection
Direct contact with eyepieces is a poten-
tial transmission method for bacterial
and viral infections of the eye. The risk can be
kept to a minimum by using personal eyepieces
for each individual or detachable eyecups.
Instructions on use (continued)
Leica DM750 M Manual 7
Assembling the Leica DM750 M
Leica DM750 M Manual 8
Assembly
1. Place the incident light axis with the heat
sink facing backwards onto the tripod
mount.
2. Align the incident light axis according to
the tripod geometry.
3. Fasten the incident light axis into place by
tightening the setscrew.
Assembling the Incident Light Axis
Leica DM750 M Manual 9
There are two types of viewing tube.
Identify which viewing tube you have:
Type 1: Leica EZ Viewing Tube with integrated
eyepieces
Type 2: Standard tube with separate eyepieces
Assembly
1. Loosen the setscrew (on top of the stand)
using the Allen key provided.
2. Set the dovetail into the tripod mount and
tighten the setscrew carefully. This way,
the tube automatically shifts to the correct
position on the optical axis of the micro-
scope.
Assembling the Viewing Tubes
Leica DM750 M Manual 10
3. Reinstall the Leica EZ Viewing Tube onto
the stand.
4. Tighten the wingscrew using the wrench
included in the delivery package.
Leica EZ Viewing Tube with Integrated Eyepieces
Loosen the setscrew at the stand or
replace the setscrew with the optional
wingscrew to rotate the Leica EZ Viewing Tube.
1. In order to use the wingscrew, remove the
setscrew that was delivered with the stand.
2. Detach the wing screw part completely
before the screw is used on the stand.
Leica EZ Viewing Tube with integrated eyepieces
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